Browsing by Author "LUE, JT"

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ENHANCEMENT OF MAGNETIC-FIELDS GENERATED BY HIGH-T(C) SUPERCONDUCTING COILS
(1993-12-01)
CHEN, K
;
HORNG, L
;
TAI, CH
;
WEI, JC
;
YANG, TJ
High-T(c) superconducting pancake coils wound by Ag-sheathed Bi-based tapes have been placed in between ring-shaped mu metal sheets. The central magnetic field B0 of a single coil was found to be enhanced by 60 % at liquid nitrogen temperature 77 K, and increased approximately 26 % for a four-coil stacked magnet. Critical currents of these coils were decreased. B0 was also increased when the magnet was wrapt by a mu metal sheet. This indicates that the well-designed high permeability materials can significantly enhance the magnetic fields generated by high-T(c) superconducting magnets.